We demonstrate a novel
GaAs-metal-semiconductor-metal (MSM)-based wavelength-selective
photodetector integrated with its complementary
metal-oxide-semiconductor (CMOS) driver and receiver. This receiver has
similar to 1-ns wavelength switching access time and has been shown to
detect 4 bits of 460-Mb/s (2.17-ns bit period) emulated data in
nonreturn-to-zero format during the enabled 8.68-ns windows. The
demonstrated channel spacing is similar to 70.8 GHz. To our knowledge,
this is the fastest reported wavelength switching time for a tunable
optical receiver.